18687609

素因数分解:

$3^2\times {\mathrm{151}}^1\times {\mathrm{13751}}^1$

素因数の和:13908

約数の個数: 12

約数和(自身を含む): 27173952

約数和(自身を除く): 8486343

約数列:

[1, 3, 9, 151, 453, 1359, 13751, 41253, 123759, 2076401, 6229203, 18687609]

約数ペア:

[(1, 18687609), (3, 6229203), (9, 2076401), (151, 123759), (453, 41253), (1359, 13751)]